Remove activeBook from S. We don't need that static var.
More removal of things from S class.
Try splitting main view
Implement synchronized scrolling between 2 versesviews.

TODO not optimized in measuring list item height
TODO scrolling in pericopes means not scrolling at all
Make split view work (POC) by loading a different version on split
More split version logic
MAke splitting version optional, and add movable split handle
Remove junk code
Show message on split version if a verse can't be found there.
Stop flinging listview when changing chapter. Also prevents scrolling fight between master and split.

Xref, bookmark, notes work in split too.
Bump version